Answer:
Step-by-step explanation:
(D+R) = 80:2 = 40
D = 40-R
(D+8) * R = 72X
Thay D=40-R
(40-R+8)*R = 72X
R=1.55, D=38.45
Answer:
4) 1400 
5) 304
or 954.56
6) 315 
Step-by-step explanation:










The circumference is pi times the diameter of the circle. The radius is half of the diameter. In this case, the radius is then 36.
x is the number you thinkc
that's it
x/2 -4
Answer:
44 feet
Step-by-step explanation:
P = 10 + 12 + 10 + 12
P = 10(2) + 12(2)
P = 20 + 24
P = 44